Friend class name lookup 3/n, PR c++/3332

	Friend class name lookup 3/n, PR c++/3332
	* name-lookup.c (push_inner_scope, pop_inner_scope): New functions.
	(lookup_type_scope): Don't deal with name from user declaration
	specially.
	* name-lookup.h (push_inner_scope, pop_inner_scope): Add declarations.
	* parser.c (cp_parser_class_specifier): Use push_inner_scope and
	pop_inner_scope.

	* g++.dg/lookup/friend3.C: New test.
	* g++.dg/lookup/friend4.C: Likewise.
	* g++.dg/lookup/friend5.C: Likewise.

From-SVN: r91300